package com.lhq.springboot.controller;

import com.lhq.springboot.dao.DepartmentDao;
import com.lhq.springboot.dao.EmployeeDao;
import com.lhq.springboot.entities.Department;
import com.lhq.springboot.entities.Employee;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;

import java.util.Collection;

@Controller
public class EmployeeController {
    @Autowired
    EmployeeDao employeeDao;
    @Autowired
    DepartmentDao departmentDao;

    //查询所有员工返回列表页面
    @GetMapping("/emps")
    public String list(Model model){
        Collection<Employee> all = employeeDao.getAll();
        //thymeleaf默认就会拼串
        //classpath:/templates/xxxx.html
        model.addAttribute("emps",all);
        return "emp/list";
    }
    //来到员工添加页面
    @GetMapping("/emp")
    public String toAddpage(Model model){
        //来到添加页面,查出所有部门，在页面展示
        Collection<Department> departments = departmentDao.getDepartments();
        model.addAttribute("depts",departments);
        return "emp/add";
    }
    //员工添加
    //SpringMVC自动将请求参数和入参对象的属性进行一一绑定；
    // 要求了请求参数的名字和Javabean入参的对象里面的属性名是一样的
    @PostMapping("/emp")
    public String addEmp(Employee employee){
        //来到员工列表页面
        //redirect：表示重定向到一个地址 /代表当前项目路径
        //forward：表示转发到一个地址
        employeeDao.save(employee);
        return "redirect:/emps";
    }
    //来到修改页面，查出员工，在页面回显
    @GetMapping("/emp/{id}")
    public String toEditPage(@PathVariable("id") Integer id,Model model){
        Employee employee = employeeDao.get(id);
        model.addAttribute("emp",employee);
        //页面要显示所有的部门列表
        Collection<Department> departments = departmentDao.getDepartments();
        model.addAttribute("depts",departments);
        //回到修改页面

        return "/emp/add";
    }
    //员工修改;需要提交员工id
    @PutMapping("/emp")
    public String updateEmployee(Employee employee){
        employeeDao.save(employee);
        return "redirect:/emps";
    }
    //员工删除
    @DeleteMapping("/emp/{id}")
    public String deleteEmployee(@PathVariable("id") Integer id){
        employeeDao.delete(id);
        return "redirect:/emps";
    }

}
